forked from extern/easydiffusion
681 lines
21 KiB
JavaScript
681 lines
21 KiB
JavaScript
var editorControlsLeft = document.getElementById("image-editor-controls-left")
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const IMAGE_EDITOR_MAX_SIZE = 800
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const IMAGE_EDITOR_BUTTONS = [
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{
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name: "Cancel",
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icon: "fa-regular fa-circle-xmark",
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handler: editor => {
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editor.hide()
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}
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},
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{
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name: "Save",
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icon: "fa-solid fa-floppy-disk",
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handler: editor => {
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editor.saveImage()
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}
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}
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]
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const defaultToolBegin = (editor, ctx, x, y, is_overlay = false) => {
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ctx.beginPath()
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ctx.moveTo(x, y)
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}
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const defaultToolMove = (editor, ctx, x, y, is_overlay = false) => {
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ctx.lineTo(x, y)
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if (is_overlay) {
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ctx.clearRect(0, 0, editor.width, editor.height)
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ctx.stroke()
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}
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}
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const defaultToolEnd = (editor, ctx, x, y, is_overlay = false) => {
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ctx.stroke()
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if (is_overlay) {
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ctx.clearRect(0, 0, editor.width, editor.height)
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}
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}
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const IMAGE_EDITOR_TOOLS = [
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{
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id: "draw",
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name: "Draw",
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icon: "fa-solid fa-pencil",
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cursor: "url(/media/images/fa-pencil.png) 0 24, pointer",
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begin: defaultToolBegin,
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move: defaultToolMove,
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end: defaultToolEnd
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},
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{
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id: "erase",
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name: "Erase",
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icon: "fa-solid fa-eraser",
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cursor: "url(/media/images/fa-eraser.png) 0 18, pointer",
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begin: defaultToolBegin,
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move: (editor, ctx, x, y, is_overlay = false) => {
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ctx.lineTo(x, y)
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if (is_overlay) {
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ctx.clearRect(0, 0, editor.width, editor.height)
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ctx.globalCompositeOperation = "source-over"
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ctx.globalAlpha = 1
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ctx.filter = "none"
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ctx.drawImage(editor.canvas_current, 0, 0)
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editor.setBrush(editor.layers.overlay)
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ctx.stroke()
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editor.canvas_current.style.opacity = 0
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}
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},
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end: (editor, ctx, x, y, is_overlay = false) => {
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ctx.stroke()
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if (is_overlay) {
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ctx.clearRect(0, 0, editor.width, editor.height)
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editor.canvas_current.style.opacity = ""
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}
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},
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setBrush: (editor, layer) => {
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layer.ctx.globalCompositeOperation = "destination-out"
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}
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},
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{
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id: "colorpicker",
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name: "Color Picker",
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icon: "fa-solid fa-eye-dropper",
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cursor: "url(/media/images/fa-eye-dropper.png) 0 24, pointer",
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begin: (editor, ctx, x, y, is_overlay = false) => {
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var img_rgb = editor.layers.background.ctx.getImageData(x, y, 1, 1).data
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var drawn_rgb = editor.ctx_current.getImageData(x, y, 1, 1).data
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var drawn_opacity = drawn_rgb[3] / 255
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editor.custom_color_input.value = rgbToHex({
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r: (drawn_rgb[0] * drawn_opacity) + (img_rgb[0] * (1 - drawn_opacity)),
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g: (drawn_rgb[1] * drawn_opacity) + (img_rgb[1] * (1 - drawn_opacity)),
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b: (drawn_rgb[2] * drawn_opacity) + (img_rgb[2] * (1 - drawn_opacity)),
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})
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editor.custom_color_input.dispatchEvent(new Event("change"))
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},
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move: (editor, ctx, x, y, is_overlay = false) => {},
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end: (editor, ctx, x, y, is_overlay = false) => {}
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}
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]
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const IMAGE_EDITOR_ACTIONS = [
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{
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id: "clear",
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name: "Clear",
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icon: "fa-solid fa-xmark",
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handler: (editor) => {
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editor.ctx_current.clearRect(0, 0, editor.width, editor.height)
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}
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}
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]
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var IMAGE_EDITOR_SECTIONS = [
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{
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name: "tool",
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title: "Tool",
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default: "draw",
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options: Array.from(IMAGE_EDITOR_TOOLS.map(t => t.id)),
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initElement: (element, option) => {
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var tool_info = IMAGE_EDITOR_TOOLS.find(t => t.id == option)
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element.className = "image-editor-button button"
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var sub_element = document.createElement("div")
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var icon = document.createElement("i")
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tool_info.icon.split(" ").forEach(c => icon.classList.add(c))
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sub_element.appendChild(icon)
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sub_element.append(tool_info.name)
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element.appendChild(sub_element)
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}
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},
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{
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name: "color",
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title: "Color",
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default: "#f1c232",
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options: [
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"custom",
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"#ea9999", "#e06666", "#cc0000", "#990000", "#660000",
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"#f9cb9c", "#f6b26b", "#e69138", "#b45f06", "#783f04",
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"#ffe599", "#ffd966", "#f1c232", "#bf9000", "#7f6000",
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"#b6d7a8", "#93c47d", "#6aa84f", "#38761d", "#274e13",
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"#a4c2f4", "#6d9eeb", "#3c78d8", "#1155cc", "#1c4587",
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"#b4a7d6", "#8e7cc3", "#674ea7", "#351c75", "#20124d",
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"#d5a6bd", "#c27ba0", "#a64d79", "#741b47", "#4c1130",
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"#ffffff", "#c0c0c0", "#838383", "#525252", "#000000",
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],
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initElement: (element, option) => {
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if (option == "custom") {
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var input = document.createElement("input")
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input.type = "color"
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element.appendChild(input)
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var span = document.createElement("span")
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span.textContent = "Custom"
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span.onclick = function(e) {
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input.click()
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}
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element.appendChild(span)
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}
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else {
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element.style.background = option
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}
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},
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getCustom: editor => {
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var input = editor.popup.querySelector(".image_editor_color input")
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return input.value
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}
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},
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{
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name: "brush_size",
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title: "Brush Size",
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default: 48,
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options: [ 16, 24, 32, 48, 64 ],
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initElement: (element, option) => {
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element.parentElement.style.flex = option
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element.style.width = option + "px"
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element.style.height = option + "px"
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element.style["border-radius"] = (option / 2).toFixed() + "px"
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}
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},
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{
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name: "opacity",
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title: "Opacity",
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default: 0,
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options: [ 0, 0.2, 0.4, 0.6, 0.8 ],
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initElement: (element, option) => {
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element.style.background = `repeating-conic-gradient(rgba(0, 0, 0, ${option}) 0% 25%, rgba(255, 255, 255, ${option}) 0% 50%) 50% / 10px 10px`
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}
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},
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{
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name: "sharpness",
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title: "Sharpness",
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default: 0,
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options: [ 0, 0.05, 0.1, 0.2, 0.3 ],
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initElement: (element, option) => {
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var size = 32
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var blur_amount = parseInt(option * size)
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var sub_element = document.createElement("div")
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sub_element.style.background = `var(--background-color3)`
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sub_element.style.filter = `blur(${blur_amount}px)`
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sub_element.style.width = `${size - 4}px`
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sub_element.style.height = `${size - 4}px`
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sub_element.style['border-radius'] = `${size}px`
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element.style.background = "none"
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element.appendChild(sub_element)
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}
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}
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]
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class EditorHistory {
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constructor(editor) {
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this.editor = editor
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this.events = [] // stack of all events (actions/edits)
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this.current_edit = null
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this.rewind_index = 0 // how many events back into the history we've rewound to. (current state is just after event at index 'length - this.rewind_index - 1')
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}
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push(event) {
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// probably add something here eventually to save state every x events
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if (this.rewind_index != 0) {
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this.events = this.events.slice(0, 0 - this.rewind_index)
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this.rewind_index = 0
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}
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var snapshot_frequency = 20 // (every x edits, take a snapshot of the current drawing state, for faster rewinding)
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if (this.events.length > 0 && this.events.length % snapshot_frequency == 0) {
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event.snapshot = this.editor.layers.drawing.ctx.getImageData(0, 0, this.editor.width, this.editor.height)
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}
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this.events.push(event)
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}
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pushAction(action) {
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this.push({
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type: "action",
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id: action
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});
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}
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editBegin(x, y) {
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this.current_edit = {
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type: "edit",
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id: this.editor.getOptionValue("tool"),
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options: Object.assign({}, this.editor.options),
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points: [ { x: x, y: y } ]
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}
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}
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editMove(x, y) {
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if (this.current_edit) {
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this.current_edit.points.push({ x: x, y: y })
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}
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}
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editEnd(x, y) {
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if (this.current_edit) {
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this.push(this.current_edit)
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this.current_edit = null
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}
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}
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clear() {
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this.events = []
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}
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undo() {
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this.rewindTo(this.rewind_index + 1)
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}
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redo() {
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this.rewindTo(this.rewind_index - 1)
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}
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rewindTo(new_rewind_index) {
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if (new_rewind_index < 0 || new_rewind_index > this.events.length) {
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return; // do nothing if target index is out of bounds
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}
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var ctx = this.editor.layers.drawing.ctx
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ctx.clearRect(0, 0, this.editor.width, this.editor.height)
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var target_index = this.events.length - 1 - new_rewind_index
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var snapshot_index = target_index
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while (snapshot_index > -1) {
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if (this.events[snapshot_index].snapshot) {
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break
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}
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snapshot_index--
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}
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if (snapshot_index != -1) {
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ctx.putImageData(this.events[snapshot_index].snapshot, 0, 0);
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}
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for (var i = (snapshot_index + 1); i <= target_index; i++) {
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var event = this.events[i]
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if (event.type == "action") {
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var action = IMAGE_EDITOR_ACTIONS.find(a => a.id == event.id)
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action.handler(this.editor)
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}
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else if (event.type == "edit") {
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var tool = IMAGE_EDITOR_TOOLS.find(t => t.id == event.id)
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this.editor.setBrush(this.editor.layers.drawing, event.options)
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var first_point = event.points[0]
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tool.begin(this.editor, ctx, first_point.x, first_point.y)
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for (var point_i = 1; point_i < event.points.length; point_i++) {
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tool.move(this.editor, ctx, event.points[point_i].x, event.points[point_i].y)
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}
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var last_point = event.points[event.points.length - 1]
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tool.end(this.editor, ctx, last_point.x, last_point.y)
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}
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}
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// re-set brush to current settings
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this.editor.setBrush(this.editor.layers.drawing)
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this.rewind_index = new_rewind_index
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}
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}
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class ImageEditor {
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constructor(popup, inpainter = false) {
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this.inpainter = inpainter
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this.popup = popup
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this.history = new EditorHistory(this)
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if (inpainter) {
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this.popup.classList.add("inpainter")
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}
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this.drawing = false
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this.temp_previous_tool = null // used for the ctrl-colorpicker functionality
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this.container = popup.querySelector(".editor-controls-center > div")
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this.layers = {}
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var layer_names = [
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"background",
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"drawing",
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"overlay"
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]
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layer_names.forEach(name => {
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let canvas = document.createElement("canvas")
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canvas.className = `editor-canvas-${name}`
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this.container.appendChild(canvas)
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this.layers[name] = {
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name: name,
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canvas: canvas,
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ctx: canvas.getContext("2d")
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}
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})
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// add mouse handlers
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this.container.addEventListener("mousedown", this.mouseHandler.bind(this))
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this.container.addEventListener("mouseup", this.mouseHandler.bind(this))
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this.container.addEventListener("mousemove", this.mouseHandler.bind(this))
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this.container.addEventListener("mouseout", this.mouseHandler.bind(this))
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this.container.addEventListener("mouseenter", this.mouseHandler.bind(this))
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this.container.addEventListener("touchstart", this.mouseHandler.bind(this))
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this.container.addEventListener("touchmove", this.mouseHandler.bind(this))
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this.container.addEventListener("touchcancel", this.mouseHandler.bind(this))
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this.container.addEventListener("touchend", this.mouseHandler.bind(this))
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// initialize editor controls
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this.options = {}
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this.optionElements = {}
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IMAGE_EDITOR_SECTIONS.forEach(section => {
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section.id = `image_editor_${section.name}`
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var sectionElement = document.createElement("div")
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sectionElement.className = section.id
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var title = document.createElement("h4")
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title.innerText = section.title
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sectionElement.appendChild(title)
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var optionsContainer = document.createElement("div")
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optionsContainer.classList.add("editor-options-container")
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this.optionElements[section.name] = []
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section.options.forEach((option, index) => {
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var optionHolder = document.createElement("div")
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var optionElement = document.createElement("div")
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optionHolder.appendChild(optionElement)
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section.initElement(optionElement, option)
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optionElement.addEventListener("click", target => this.selectOption(section.name, index))
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optionsContainer.appendChild(optionHolder)
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this.optionElements[section.name].push(optionElement)
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})
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this.selectOption(section.name, section.options.indexOf(section.default))
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sectionElement.appendChild(optionsContainer)
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this.popup.querySelector(".editor-controls-left").appendChild(sectionElement)
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})
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this.custom_color_input = this.popup.querySelector(`input[type="color"]`)
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this.custom_color_input.addEventListener("change", () => {
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this.custom_color_input.parentElement.style.background = this.custom_color_input.value
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this.selectOption("color", 0)
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})
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if (this.inpainter) {
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this.selectOption("color", IMAGE_EDITOR_SECTIONS.find(s => s.name == "color").options.indexOf("#ffffff"))
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}
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// initialize the right-side controls
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var buttonContainer = document.createElement("div")
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IMAGE_EDITOR_BUTTONS.forEach(button => {
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var element = document.createElement("div")
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var icon = document.createElement("i")
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element.className = "image-editor-button button"
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icon.className = button.icon
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element.appendChild(icon)
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element.append(button.name)
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buttonContainer.appendChild(element)
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element.addEventListener("click", event => button.handler(this))
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})
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var actionsContainer = document.createElement("div")
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var actionsTitle = document.createElement("h4")
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actionsTitle.textContent = "Actions"
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actionsContainer.appendChild(actionsTitle);
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IMAGE_EDITOR_ACTIONS.forEach(action => {
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var element = document.createElement("div")
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var icon = document.createElement("i")
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element.className = "image-editor-button button"
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icon.className = action.icon
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element.appendChild(icon)
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element.append(action.name)
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actionsContainer.appendChild(element)
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element.addEventListener("click", event => this.runAction(action.id))
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})
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this.popup.querySelector(".editor-controls-right").appendChild(actionsContainer)
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this.popup.querySelector(".editor-controls-right").appendChild(buttonContainer)
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this.keyHandlerBound = this.keyHandler.bind(this)
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this.setSize(512, 512)
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}
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show() {
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this.popup.classList.add("active")
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document.addEventListener("keydown", this.keyHandlerBound)
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document.addEventListener("keyup", this.keyHandlerBound)
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}
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hide() {
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this.popup.classList.remove("active")
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document.removeEventListener("keydown", this.keyHandlerBound)
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document.removeEventListener("keyup", this.keyHandlerBound)
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}
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setSize(width, height) {
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if (width == this.width && height == this.height) {
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return
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}
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var max_size = Math.min(parseInt(window.innerWidth * 0.9), width, 768)
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if (width > height) {
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var multiplier = max_size / width
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width = (multiplier * width).toFixed()
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height = (multiplier * height).toFixed()
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}
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else {
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var multiplier = max_size / height
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width = (multiplier * width).toFixed()
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height = (multiplier * height).toFixed()
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}
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this.width = width
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this.height = height
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this.container.style.width = width + "px"
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this.container.style.height = height + "px"
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Object.values(this.layers).forEach(layer => {
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layer.canvas.width = width
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layer.canvas.height = height
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})
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if (this.inpainter) {
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this.saveImage() // We've reset the size of the image so inpainting is different
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}
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this.setBrush()
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this.history.clear()
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}
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get tool() {
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var tool_id = this.getOptionValue("tool")
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return IMAGE_EDITOR_TOOLS.find(t => t.id == tool_id);
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}
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loadTool() {
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this.drawing = false
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this.container.style.cursor = this.tool.cursor;
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}
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setImage(url, width, height) {
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this.setSize(width, height)
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this.layers.drawing.ctx.clearRect(0, 0, this.width, this.height)
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this.layers.background.ctx.clearRect(0, 0, this.width, this.height)
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if (url) {
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var image = new Image()
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image.onload = () => {
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this.layers.background.ctx.drawImage(image, 0, 0, this.width, this.height)
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}
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image.src = url
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}
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else {
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this.layers.background.ctx.fillStyle = "#ffffff"
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this.layers.background.ctx.beginPath()
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this.layers.background.ctx.rect(0, 0, this.width, this.height)
|
|
this.layers.background.ctx.fill()
|
|
}
|
|
this.history.clear()
|
|
}
|
|
saveImage() {
|
|
if (!this.inpainter) {
|
|
// This is not an inpainter, so save the image as the new img2img input
|
|
this.layers.background.ctx.drawImage(this.layers.drawing.canvas, 0, 0, this.width, this.height)
|
|
var base64 = this.layers.background.canvas.toDataURL()
|
|
initImagePreview.src = base64 // this will trigger the rest of the app to use it
|
|
}
|
|
else {
|
|
// This is an inpainter, so make sure the toggle is set accordingly
|
|
var is_blank = !this.layers.drawing.ctx
|
|
.getImageData(0, 0, this.width, this.height).data
|
|
.some(channel => channel !== 0)
|
|
maskSetting.checked = !is_blank
|
|
}
|
|
this.hide()
|
|
}
|
|
getImg() { // a drop-in replacement of the drawingboard version
|
|
return this.layers.drawing.canvas.toDataURL()
|
|
}
|
|
setImg(dataUrl) { // a drop-in replacement of the drawingboard version
|
|
var image = new Image()
|
|
image.onload = () => {
|
|
var ctx = this.layers.drawing.ctx;
|
|
ctx.clearRect(0, 0, this.width, this.height)
|
|
ctx.globalCompositeOperation = "source-over"
|
|
ctx.globalAlpha = 1
|
|
ctx.filter = "none"
|
|
ctx.drawImage(image, 0, 0, this.width, this.height)
|
|
this.setBrush(this.layers.drawing)
|
|
}
|
|
image.src = dataUrl
|
|
}
|
|
runAction(action_id) {
|
|
var action = IMAGE_EDITOR_ACTIONS.find(a => a.id == action_id)
|
|
this.history.pushAction(action_id)
|
|
action.handler(this)
|
|
}
|
|
setBrush(layer = null, options = null) {
|
|
if (options == null) {
|
|
options = this.options
|
|
}
|
|
if (layer) {
|
|
layer.ctx.lineCap = "round"
|
|
layer.ctx.lineJoin = "round"
|
|
layer.ctx.lineWidth = options.brush_size
|
|
layer.ctx.fillStyle = options.color
|
|
layer.ctx.strokeStyle = options.color
|
|
var sharpness = parseInt(options.sharpness * options.brush_size)
|
|
layer.ctx.filter = sharpness == 0 ? `none` : `blur(${sharpness}px)`
|
|
layer.ctx.globalAlpha = (1 - options.opacity)
|
|
layer.ctx.globalCompositeOperation = "source-over"
|
|
var tool = IMAGE_EDITOR_TOOLS.find(t => t.id == options.tool)
|
|
if (tool && tool.setBrush) {
|
|
tool.setBrush(editor, layer)
|
|
}
|
|
}
|
|
else {
|
|
Object.values([ "drawing", "overlay" ]).map(name => this.layers[name]).forEach(l => {
|
|
this.setBrush(l)
|
|
})
|
|
}
|
|
}
|
|
get ctx_overlay() {
|
|
return this.layers.overlay.ctx
|
|
}
|
|
get ctx_current() { // the idea is this will help support having custom layers and editing each one
|
|
return this.layers.drawing.ctx
|
|
}
|
|
get canvas_current() {
|
|
return this.layers.drawing.canvas
|
|
}
|
|
keyHandler(event) { // handles keybinds like ctrl+z, ctrl+y
|
|
if (!this.popup.classList.contains("active")) {
|
|
document.removeEventListener("keydown", this.keyHandlerBound)
|
|
document.removeEventListener("keyup", this.keyHandlerBound)
|
|
return // this catches if something else closes the window but doesnt properly unbind the key handler
|
|
}
|
|
|
|
// keybindings
|
|
if (event.type == "keydown") {
|
|
if ((event.key == "z" || event.key == "Z") && event.ctrlKey) {
|
|
if (!event.shiftKey) {
|
|
this.history.undo()
|
|
}
|
|
else {
|
|
this.history.redo()
|
|
}
|
|
}
|
|
if (event.key == "y" && event.ctrlKey) {
|
|
this.history.redo()
|
|
}
|
|
}
|
|
|
|
// dropper ctrl holding handler stuff
|
|
var dropper_active = this.temp_previous_tool != null;
|
|
if (dropper_active && !event.ctrlKey) {
|
|
this.selectOption("tool", IMAGE_EDITOR_TOOLS.findIndex(t => t.id == this.temp_previous_tool))
|
|
this.temp_previous_tool = null
|
|
}
|
|
else if (!dropper_active && event.ctrlKey) {
|
|
this.temp_previous_tool = this.getOptionValue("tool")
|
|
this.selectOption("tool", IMAGE_EDITOR_TOOLS.findIndex(t => t.id == "colorpicker"))
|
|
}
|
|
}
|
|
mouseHandler(event) {
|
|
var bbox = this.layers.overlay.canvas.getBoundingClientRect()
|
|
var x = (event.clientX || 0) - bbox.left
|
|
var y = (event.clientY || 0) - bbox.top
|
|
var type = event.type;
|
|
var touchmap = {
|
|
touchstart: "mousedown",
|
|
touchmove: "mousemove",
|
|
touchend: "mouseup",
|
|
touchcancel: "mouseup"
|
|
}
|
|
if (type in touchmap) {
|
|
type = touchmap[type]
|
|
if (event.touches && event.touches[0]) {
|
|
var touch = event.touches[0]
|
|
var x = (touch.clientX || 0) - bbox.left
|
|
var y = (touch.clientY || 0) - bbox.top
|
|
}
|
|
}
|
|
event.preventDefault()
|
|
// do drawing-related stuff
|
|
if (type == "mousedown" || (type == "mouseenter" && event.buttons == 1)) {
|
|
this.drawing = true
|
|
this.tool.begin(this, this.ctx_current, x, y)
|
|
this.tool.begin(this, this.ctx_overlay, x, y, true)
|
|
this.history.editBegin(x, y)
|
|
}
|
|
if (type == "mouseup" || type == "mousemove") {
|
|
if (this.drawing) {
|
|
if (x > 0 && y > 0) {
|
|
this.tool.move(this, this.ctx_current, x, y)
|
|
this.tool.move(this, this.ctx_overlay, x, y, true)
|
|
this.history.editMove(x, y)
|
|
}
|
|
}
|
|
}
|
|
if (type == "mouseup" || type == "mouseout") {
|
|
if (this.drawing) {
|
|
this.drawing = false
|
|
this.tool.end(this, this.ctx_current, x, y)
|
|
this.tool.end(this, this.ctx_overlay, x, y, true)
|
|
this.history.editEnd(x, y)
|
|
}
|
|
}
|
|
}
|
|
getOptionValue(section_name) {
|
|
var section = IMAGE_EDITOR_SECTIONS.find(s => s.name == section_name)
|
|
return this.options && section_name in this.options ? this.options[section_name] : section.default
|
|
}
|
|
selectOption(section_name, option_index) {
|
|
var section = IMAGE_EDITOR_SECTIONS.find(s => s.name == section_name)
|
|
var value = section.options[option_index]
|
|
this.options[section_name] = value == "custom" ? section.getCustom(this) : value
|
|
|
|
this.optionElements[section_name].forEach(element => element.classList.remove("active"))
|
|
this.optionElements[section_name][option_index].classList.add("active")
|
|
|
|
// change the editor
|
|
this.setBrush()
|
|
if (section.name == "tool") {
|
|
this.loadTool()
|
|
}
|
|
}
|
|
}
|
|
|
|
function rgbToHex(rgb) {
|
|
function componentToHex(c) {
|
|
var hex = parseInt(c).toString(16)
|
|
return hex.length == 1 ? "0" + hex : hex
|
|
}
|
|
return "#" + componentToHex(rgb.r) + componentToHex(rgb.g) + componentToHex(rgb.b)
|
|
}
|
|
|
|
const imageEditor = new ImageEditor(document.getElementById("image-editor"))
|
|
const imageInpainter = new ImageEditor(document.getElementById("image-inpainter"), true)
|
|
|
|
imageEditor.setImage(null, 512, 512)
|
|
imageInpainter.setImage(null, 512, 512)
|
|
|
|
document.getElementById("init_image_button_draw").addEventListener("click", () => {
|
|
imageEditor.show()
|
|
})
|
|
document.getElementById("init_image_button_inpaint").addEventListener("click", () => {
|
|
imageInpainter.show()
|
|
})
|